Preheat the oven to 350°F and prepare the donut pan with non-stick spray.
Add the flour, baking soda, sugar, cinnamon, ginger, cloves, and nutmeg to a large mixing bowl and whisk to fully combine. Set aside.
In another mixing bowl, add the molasses, vanilla, sour cream, milk, vegetable oil, and egg and whisk together.
Add the wet ingredients to the dry ingredients and stir just until combined. Don't overmix or your donuts will be dense and tough. The batter may be a little lumpy and that's ok.
Spoon the batter into the prepared donut pan. Bake for 14 minutes and then remove to cool on a rack.